Asked by jj86
A couple of extra practice questions I can't remember how to do. Can anyone help?
1. "2*squareroot*5(3*squareroot*7 + 8*squareroot*12)"
I simplified down to 6*squareroot*35 + 2*squareroot*15, but now I am stuck!
2. "The sum of a number and the square of that number is 30. What is the number?"
Is the number 900?
Thanks for any help!
1. "2*squareroot*5(3*squareroot*7 + 8*squareroot*12)"
I simplified down to 6*squareroot*35 + 2*squareroot*15, but now I am stuck!
2. "The sum of a number and the square of that number is 30. What is the number?"
Is the number 900?
Thanks for any help!
Answers
Answered by
Mr. L.
Ok
for number one i can't follow your logic, but you have to solve the problem in the brackets before using outside information.
For number 2... The equation would be written like this
n + n squared = 30
therefore what numbers can you square that are below 30?
Work backwards
put in values for n
1,2,3 etc. until you can add the same number and then get thirty
for number one i can't follow your logic, but you have to solve the problem in the brackets before using outside information.
For number 2... The equation would be written like this
n + n squared = 30
therefore what numbers can you square that are below 30?
Work backwards
put in values for n
1,2,3 etc. until you can add the same number and then get thirty
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